Bieńkowska, Anna, Marek Jedwabiński, Dariusz Mątewski, Katarzyna Janowiak-Maciejewska, and Katarzyna Pilecka-Rybka. 2014. “Retroperitoneal Hematoma After Use of Oral Anticoagulants in the Postoperative Period Complicated by Atrial Fibrillation - A Case Report”. Medical and Biological Sciences 27 (3):53-56. https://doi.org/10.12775/mbs-2013-0026.